Evaluate the radical expressions or indicate that the root is not a real number.
A. -2
B. 2
C. 4
D. Not a real number
Answer: B
Mathematics
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A. 4e?(sin ? - cos ?) + 4e? B. 0 C. 8e?(sin ? - cos ?) D. 8e? sin ?
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Find the reciprocal.- 
A. 
B. - 
C. 
D. 
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Add.
A. 23 B. 25 C. 22 D. 20
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Plot the point.(1, -3)
A. 
B. 
C. 
D. 
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